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-   -   Will Mocal Sandwich 20mm fit on 1.6? (https://www.miataturbo.net/general-miata-chat-9/will-mocal-sandwich-20mm-fit-1-6-a-20422/)

rippledabs 05-02-2008 03:18 PM

Will Mocal Sandwich 20mm fit on 1.6?
 
Flying miata has a 1.6 version of the Oil Sandwich thermostat that includes a spacer and longer pipe thread for the oil filter.

Does the 1.6 really need it?

Joe Perez 05-02-2008 05:34 PM

The sandwich plate itself will fit without the spacer, however it's unlikely you'll be able to screw hoses onto the fittings. The surface of the filter mount on the block is recessed behind some obstructions, and the purpose of the spacer is to bring the plate far enough out that the hoses will clear the obstructions.

That said, IMO the Mocal plate is junk. The thermostat on it seems to either bypass too much oil when cold or open too soon, because on the street it took half of eternity for my oil to reach 180°, and it never got much above that.

I replaced my spacer with an OEM '94+ cooler, blocked off the hose ports on the plate and kept it around as it's where my oil temp sensor is. I'll see if I've still got the spacer somewhere.

Savington 05-02-2008 05:35 PM

Joe, the thermostat has to flow SOMETHING. Otherwise, when it opens, you'll get a sudden oil pressure drop. My 6x11" cooler with a 180 degree Mocal thermostat runs about 190 degrees around town on a hot 90 degree day, and about 175-180 on the highway.

rippledabs 05-02-2008 07:39 PM


Originally Posted by Joe Perez (Post 251246)
The sandwich plate itself will fit without the spacer, however it's unlikely you'll be able to screw hoses onto the fittings. The surface of the filter mount on the block is recessed behind some obstructions, and the purpose of the spacer is to bring the plate far enough out that the hoses will clear the obstructions.

Do you think the Hayden will fit without a spacer?

http://cgi.ebay.com/ebaymotors/Honda...mZ220148441832


Originally Posted by Joe Perez (Post 251246)
That said, IMO the Mocal plate is junk. The thermostat on it seems to either bypass too much oil when cold or open too soon, because on the street it took half of eternity for my oil to reach 180°, and it never got much above that.

This is the 3rd time I heard this comment about the Mocal plate. I am beginning to have 2nd thoughts about getting the Mocal. Do you think the 3/8" inlet/outlet of the hayden will result is a high oil pressure drop? compared to the Mocal.


Originally Posted by Joe Perez (Post 251246)
I replaced my spacer with an OEM '94+ cooler, blocked off the hose ports on the plate and kept it around as it's where my oil temp sensor is. I'll see if I've still got the spacer somewhere.

If I get the Mocal, will any of these ebay sandwich adaptors work as a spacer? I'll just mount some temp sensors to them.
http://cgi.ebay.com/ebaymotors/OIL-F...spagenameZWDVW

Joe Perez 05-03-2008 10:19 AM


Originally Posted by Savington (Post 251248)
Joe, the thermostat has to flow SOMETHING.

Yes, it does. Problem is that mine, anyway, felt like it was flowing too much, too soon.

After I installed my 1.8 OEM oil cooler, I discovered an unforeseen benefit of it. First thing in the morning, it acts as an oil warmer! Oil comes up to temp faster than stock (1.6 design) in this configuration.

I've not have any overheating problems since installing it- even during the five hour mountain run we did a few weeks ago oil temp never went above 220°. For those who are doing bona-fide track events and genuinely do have a problem, I believe a much better solution would be to place a small radiator ahead of the main radiator, dedicated to the oil cooler coolant. Put some "Ys" and a ball valve in there, and you can select between "normal" and "super-cool" on the oil.


Originally Posted by rippledabs
Do you think the Hayden will fit without a spacer?

Tell you what. Pull your oil filter, stick your head in there, and you tell me.

Personally, I don't see how any plate will fit on the 1.6 without a spacer. There's just not much room to route the hoses.

That said, I just checked and I do still have a spacer sitting on the shelf. $25 gets it shipped within the 48 states. You'll still need to come up with a longer pipe, as mine's in use with the new cooler. The stock pipe off any 1.8 Miata engine will work.

Savington 05-03-2008 02:25 PM


Originally Posted by Joe Perez (Post 251473)
Yes, it does. Problem is that mine, anyway, felt like it was flowing too much, too soon.

After I installed my 1.8 OEM oil cooler, I discovered an unforeseen benefit of it. First thing in the morning, it acts as an oil warmer! Oil comes up to temp faster than stock (1.6 design) in this configuration.

I've not have any overheating problems since installing it- even during the five hour mountain run we did a few weeks ago oil temp never went above 220°. For those who are doing bona-fide track events and genuinely do have a problem, I believe a much better solution would be to place a small radiator ahead of the main radiator, dedicated to the oil cooler coolant. Put some "Ys" and a ball valve in there, and you can select between "normal" and "super-cool" on the oil.

I saw oil temps of 230° at T-hill back in December with my enormous oil cooler. Obviously the OEM 1.8 cooler wasn't doing me much good (oil temps used to be 275°+ ;))

Oscar 05-03-2008 02:29 PM

pics of a stock 1.8 oil cooler? (:noob:)

chucker 05-04-2008 12:43 PM


Originally Posted by Joe Perez (Post 251473)
I replaced my spacer with an OEM '94+ cooler, blocked off the hose ports on the plate and kept it around as it's where my oil temp sensor is.


Originally Posted by Joe Perez (Post 251473)
After I installed my 1.8 OEM oil cooler, I discovered an unforeseen benefit of it. First thing in the morning, it acts as an oil warmer! Oil comes up to temp faster than stock (1.6 design) in this configuration.


:confused:

If you blocked off the (coolant) hoses, how does the OE 94+ configuration warm your oil more rapidly?


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